Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Chemistry Expert

Multiple choice problems in nuclear chemistry.

1. As the temperature of a sample of a radioactive element decreases, the half-life will
A. decrease
B .increase
C. remain the same
D. depends on the nucleus
E. none of the above

2. In a fusion reaction, reacting nuclei must collide. Collisions between two nuclei are difficult to achieve Because the nuclei are
A. both negatively charged and repel each other
B. both positively charged and repel each other
C. oppositely charged and attract each other
D. oppositely charged and repel each other
E. none of the above

3. Heavy water and graphite are two exs of materials that are can be used in a nuclear reactor to slow down neutrons. These materials are called
1.fuels
2.shields
3.coolants
4.moderators
5.none of the above

4.Which reaction illustrates fusion?
A.1H2 + 1H2 à 2He4
B.0n1 + 13Al27 à 11Na24 + 2He4
C.13Al27 + 2He4 à 15P30 + 0n1
D.7N14 + 2He4 à 1H1 + 8O17
E.all of the above

5.Compared to chemical reactions, nuclear reactions produce:
i.proportionately far less energy
ii.fewer changes in the nucleus
iii.proportionately far more energy
iv.different states
v.none of the above

Chemistry, Academics

  • Category:- Chemistry
  • Reference No.:- M919001

Have any Question? 


Related Questions in Chemistry

Toxicologists use the term ld50to describe the number of

Toxicologists use the term LD50to describe the number of grams of a substance per kilogram of body weight that is a lethal dose for 50 percent of test animals. Calculate the number of arsenic(VI) oxide molecules correspo ...

Experiment 1 qualitative analysis of unknown ions in a

EXPERIMENT #1: QUALITATIVE ANALYSIS OF UNKNOWN IONS IN A SOLTUION Analysis of an Unknown Individual Pre-lab 1. The main goal/purpose of the experiment is (what are you trying to discover in this lab): a. What are the que ...

1 estimate the degree of polymerization of with an average

1. Estimate the degree of polymerization of with an average molecular weight of 150,000 the molecular weight of an ethylene monomer is 28 2. To enhance processability of a polymer why would you want to decrease its molec ...

Poblem 1for the global reaction vfcmhn vo2 o2 vco2 co2

Problem 1 For the global reaction v' F C m H n + v' O_2 O 2 = v'' CO_2 CO 2 + v'' H_2O H 2 O calculate the stoichiometric mixture fraction and the adiabatic flame temperature for the following fuels, if both fuel and oxy ...

Hi im in 8th grade and dont understand my homework the

Hi! I'm in 8th grade and don't understand my homework. The question is; "Relative to 0 degrees C, the amount of thermal energy in a quantity of water is its mass x temperature x specific heat. The specific heat of water ...

1draw complete lewis structures showing all bonds lone

1. Draw complete Lewis Structures showing all bonds, lone pairs for the following molecules. Label the Functional groups and Type of Compounds by looking up Table 3.1 3.2 and 3.3 in textbook. Remember all carbons must ha ...

Task 1design a hypothetical peptide for recombinant

Task 1 Design a hypothetical peptide for recombinant expression in the designated host organism (mammalian/plant/yeast/insect/worm) using your name as the amino acid sequence. For example, the amino acid sequence for Joh ...

The average adult male has a total blood volume of 50 l

The average adult male has a total blood volume of 5.0 L .After drinking a few beers, he has a BAC of 0.10 (see Exercise 4.65). What mass of alcohol is circulating in his blood?

A pure titanium cube has an edge length of 268 how many

A pure titanium cube has an edge length of 2.68 . How many titanium atoms does it contain? Titanium has a density of 4.50 g/cm 3 .

For this picnic you need to feed at least 300 people if you

For this picnic, you need to feed at least 300 people. If you want to feed everyone, but still have equal numbers of buns and hot dogs, what is the minimum number of packages of buns and hot dogs you need, respectively?

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

A cola-dispensing machine is set to dispense 9 ounces of

A cola-dispensing machine is set to dispense 9 ounces of cola per cup, with a standard deviation of 1.0 ounce. The manuf

What is marketingbullwhat is marketing think back to your

What is Marketing? • "What is marketing"? Think back to your impressions before you started this class versus how you

Question -your client david smith runs a small it

QUESTION - Your client, David Smith runs a small IT consulting business specialising in computer software and techno

Inspection of a random sample of 22 aircraft showed that 15

Inspection of a random sample of 22 aircraft showed that 15 needed repairs to fix a wiring problem that might compromise

Effective hrmquestionhow can an effective hrm system help

Effective HRM Question How can an effective HRM system help facilitate the achievement of an organization's strate